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HP-49g Kernel



#5

Hi, i have a newly acquired so i don't know the history. When i reset it, i can see briefly on the screen a picture saying somthing like "POWERED BY ...KERNEL, v 3.00".

When i type VER, which give the CAS version, i can read "HP49 CAS by Parisse, Heiswkanen & Fiechter", and "4.19990729" on the xreg line

Here are my questions :

Is is the standard CAS that HP install on the calc or a third party CAS?

If it's not a HP one, can i use the HP manual to learn the clculator without change?

How can i uninstall that CAS and install the original one?

Is there adevantave of having that CAS insted of the original one?

Thanks

Michel

Edited: 28 May 2004, 6:15 p.m.


#6

Hi, i have a newly acquired so i don't know the history. When i reset it, i can see briefly on the screen a picture saying somthing like "POWERED BY ...KERNEL, v 3.00".
VPN: It is an advance version of the original 3rd party MetaKernel developed by a small group of ingenius french programmers.
VPN: HP hired these people to form ACO and they integreted the new V3 into the 49 series in less than two years (including other software).

When i type VER, which give the CAS version, i can read "HP49 CAS by Parisse, Heiswkanen & Fiechter", and "4.19990729" on the xreg line
VPN: That's the other software included = Computer Algebra System.
VPN: The people mentioned were also hired by HP (subcontracted) to integrated ALG48 and Erable to a new advanced CAS for the 49 series.
VPN: It's "Heiskanen" and I know Mika.
X
Is is the standard CAS that HP install on the calc or a third party CAS?
VPN: Both

If it's not a HP one, can i use the HP manual to learn the clculator without change?
VPN: I would load from the HP calc web site the latest 49g+ manuals.

How can i uninstall that CAS and install the original one?
VPN: You can not (unless you're are extreme hacker)

Is there adevantave of having that CAS insted of the original one?
VPN: Yes - too numerous to mention here

Thanks
VPN: You're welcome

Michel
VPN: {VPN}

#7

Quote:
When i type VER, which give the CAS version, i can read "HP49 CAS by
Parisse, Heiswkanen & Fiechter", and "4.19990729" on the xreg line

Also try the VERSION command.

With a revision 1.18 ROM, the VER command gives me 4.2000031 on level
1, and with a revision 1.19-6 ROM, VER gives me 4.20010912 on level 1,
so I think that your ROM must be an old one.

You ought to upgrade your ROM. Revision 1.18 is the last officially
released by HP; revision 1.19-6 is the latest "beta" revision released
by the developers. Don't let the beta designation put you off; 1.19-6
really is much better than 1.18. It looks to me as if HP management
decided that 1.18 was "good enough", but the developers decided to
continue improvements on their own.

Revision 1.19-6 is available at
http://etud.epita.fr/~avenar_j/hp/49.html. Several different
revisions can be found at http://www.hpcalc.org/hp49/pc/rom/.

A newer CAS is available, but you'll have to compile it into a new ROM
image yourself. Search at
http://groups.google.com/advanced_group_search?group=comp.sys.hp48.
See http://groups.google.com/groups?threadm=6b643d1.0404050522.1c865372%40posting.google.com for example.

You'll need connectivity software. In my opinion, Conn4x (Xmodem
based) is the best; get it from
this
HP page
.

But for upgrading the ROM on a 49G, you might need HPComm (Kermit
based), which you can get from
another
HP page
.

For manuals, get the 49G "user's guide" and "advanced user's guide";
see http://www.hpcalc.org/search.php?query=guide&hp49=1. It's
also good to get information on the system flags, see
http://www.hpcalc.org/details.php?id=4884, and reserved
variables, see http://www.hpcalc.org/details.php?id=4922.

As Veli-Pekka mentioned, the 49g+ documentation mostly applies to the
49G as well. The main differences from a user's viewpoint are the
different communications I/O ports and the MMC/SD card capabilty on
the 49g+.

Also see
this
HP page
.

Note that a lot of the information for the 48 series and even the 28
series still applies to the 49 series.

The comp.sys.hp48 newsgroup can be accessed from
http://groups.google.com/groups?q=comp.sys.hp48, but the archive
is updated only a few times per day, so for active participation it's
better to find a different usenet server.

Of course a lot is available at http://www.hpcalc.org/. Also see
http://page.mi.fu-berlin.de/~raut/ and
http://m.webring.com/hub?ring=hp48.

Regards,
James

Edited: 29 May 2004, 6:57 p.m.


#8

A really goo tahks to you 2 guys, your informations are great to me.

You are right, my version with VERSION is 1.10.

I'm no sure to install the 1.19 version; it is written that i will have less "user" memory or something like that if i install this version; what it is really?

Thanks again!


#9

Quote:
I'm no sure to install the 1.19 version; it is written that i will have less "user" memory or something like that if i install this version; what it is really?

You will lose 64KB of user flash memory to the operating system when you upgrade to 1.19-5 or newer, but that still leaves you with 1MB of user flash memory for storing libraries and "backup objects". I doubt that many of us will ever actually fill up the flash memory, and you can always move some things that you don't really need on the calculator to your PC.

Of course, once you have things on the calculator that you don't want to lose, it's wise to back it up to another device like a PC anyway.

Use LeftShift FILES (on the [G] key) to see your current memory situation.

See the "What's New from Release..." notes with the upgrades. I believe that the bug fixes and improved features are well worth losing the 64KB flash bank.

Regards,
James


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